2011443434 has 96 divisors (see below), whose sum is σ = 4366426176. Its totient is φ = 680762880.

The previous prime is 2011443353. The next prime is 2011443457. The reversal of 2011443434 is 4343441102.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234017 + ... + 242459.

It is an arithmetic number, because the mean of its divisors is an integer number (45483606).

Almost surely, 2^2011443434 is an apocalyptic number.

2011443434 is an abundant number, since it is smaller than the sum of its proper divisors (2354982742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011443434 is a wasteful number, since it uses less digits than its factorization.

2011443434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500 (or 8493 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2011443434 is about 44849.1185420628. The cubic root of 2011443434 is about 1262.3194519319.

Adding to 2011443434 its reverse (4343441102), we get a palindrome (6354884536).

The spelling of 2011443434 in words is "two billion, eleven million, four hundred forty-three thousand, four hundred thirty-four".